Merge tag 'linux-can-next-for-5.11-20201120' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next

Marc Kleine-Budde says:

====================
pull-request: can-next 2020-11-20

The first patch is by Yegor Yefremov and he improves the j1939 documentaton by
adding tables for the CAN identifier and its fields.

Then there are 8 patches by Oliver Hartkopp targeting the CAN driver
infrastructure and drivers. These add support for optional DLC element to the
Classical CAN frame structure. See patch ea7800565a12 ("can: add optional DLC
element to Classical CAN frame structure") for details. Oliver's last patch
adds len8_dlc support to several drivers. Stefan Mätje provides a patch to add
len8_dlc support to the esd_usb2 driver.

The next patch is by Oliver Hartkopp, too and adds support for modification of
Classical CAN DLCs to CAN GW sockets.

The next 3 patches target the nxp,flexcan DT bindings. One patch by my adds the
missing uint32 reference to the clock-frequency property. Joakim Zhang's
patches fix the fsl,clk-source property and add the IMX_SC_R_CAN() macro to the
imx firmware header file, which will be used in the flexcan driver later.

Another patch by Joakim Zhang prepares the flexcan driver for SCU based
stop-mode, by giving the existing, GPR based stop-mode, a _GPR postfix.

The next 5 patches are by me, target the flexcan driver, and clean up the
.ndo_open and .ndo_stop callbacks. These patches try to fix a sporadically
hanging flexcan_close() during simultanious ifdown, sending of CAN messages and
probably open CAN bus. I was never able to reproduce, but these seem to fix the
problem at the reporting user. As these changes are rather big, I'd like to
mainline them via net-next/master.

The next patches are by Jimmy Assarsson and Christer Beskow, they add support
for new USB devices to the existing kvaser_usb driver.

The last patch is by Kaixu Xia and simplifies the return in the
mcp251xfd_chip_softreset() function in the mcp251xfd driver.

* tag 'linux-can-next-for-5.11-20201120' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next: (25 commits)
  can: mcp251xfd: remove useless code in mcp251xfd_chip_softreset
  can: kvaser_usb: Add new Kvaser hydra devices
  can: kvaser_usb: kvaser_usb_hydra: Add support for new device variant
  can: kvaser_usb: Add new Kvaser Leaf v2 devices
  can: kvaser_usb: Add USB_{LEAF,HYDRA}_PRODUCT_ID_END defines
  can: flexcan: flexcan_close(): change order if commands to properly shut down the controller
  can: flexcan: flexcan_open(): completely initialize controller before requesting IRQ
  can: flexcan: flexcan_rx_offload_setup(): factor out mailbox and rx-offload setup into separate function
  can: flexcan: move enabling/disabling of interrupts from flexcan_chip_{start,stop}() to callers
  can: flexcan: factor out enabling and disabling of interrupts into separate function
  can: flexcan: rename macro FLEXCAN_QUIRK_SETUP_STOP_MODE -> FLEXCAN_QUIRK_SETUP_STOP_MODE_GPR
  dt-bindings: firmware: add IMX_SC_R_CAN(x) macro for CAN
  dt-bindings: can: fsl,flexcan: fix fsl,clk-source property
  dt-bindings: can: fsl,flexcan: add uint32 reference to clock-frequency property
  can: gw: support modification of Classical CAN DLCs
  can: drivers: add len8_dlc support for esd_usb2 CAN adapter
  can: drivers: add len8_dlc support for various CAN adapters
  can: drivers: introduce helpers to access Classical CAN DLC values
  can: update documentation for DLC usage in Classical CAN
  can: rename CAN FD related can_len2dlc and can_dlc2len helpers
  ...
====================

Link: https://lore.kernel.org/r/20201120133318.3428231-1-mkl@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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